1643141054 has 4 divisors (see below), whose sum is σ = 2464711584. Its totient is φ = 821570526.

The previous prime is 1643141047. The next prime is 1643141063. The reversal of 1643141054 is 4501413461.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410785262 + ... + 410785265.

It is an arithmetic number, because the mean of its divisors is an integer number (616177896).

Almost surely, 2^1643141054 is an apocalyptic number.

1643141054 is a deficient number, since it is larger than the sum of its proper divisors (821570530).

1643141054 is an equidigital number, since it uses as much as digits as its factorization.

1643141054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821570529.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1643141054 is about 40535.6763111213. The cubic root of 1643141054 is about 1180.0261063840.

The spelling of 1643141054 in words is "one billion, six hundred forty-three million, one hundred forty-one thousand, fifty-four".